Social Networks and Information Cascades
Link: https://www.pnas.org/doi/10.1073/pnas.2102147118 Commentary: This research paper, titled “Polarized information ecosystems can reorganize social networks via information cascades”, regards how computational modeling can show how unfollowing can produce homogeneous networks. We usually regard unfollowing as something as breaking edges on a network, however, in this case, research observes institutional polarization causing informational cascades resulting in groups forming […]
Information Cascades, should it be followed in the Financial Market?
https://www.koreaherald.com/view.php?ud=20220512000691 https://forkast.news/headlines/south-koreas-crypto-market-capitalization-drops-60-in-six-months/ Information cascade is when an individual makes a decision based on the decisions of other people, while ignoring their own personal information. These types of behaviors can be observed in various real-world scenarios such as the Financial Market. It is nothing new when it comes to the observation of information cascades in the […]
Polling, Voting and Information Cascades
It’s voting day! Given all the discussion about election outcomes, I am curious about networks in the context of public opinion formation and voting patterns. And no, this isn’t (just) an excuse to write my post on the day it is due. In researching this, I stumbled across a study by Blais, Gidengil and […]
Elon Musk’s Twitter Takeover & How It Plays into Information Cascades and User Value
As Twitter transitions into its new ownership under Elon Musk, it is bound to face many changes to the platform. Less than three weeks ago, on October 27, 2022, Musk closed the $44 billion deal to purchase Twitter. Following this acquisition, Twitter, both the platform and the company, has seen many changes. The first of […]
Tiktok, Information Cascades, and the Music Industry
https://www.businessinsider.com/how-tiktok-is-changing-the-music-industry-marketing-discovery-2021-7 Tiktok is super popular app, with at least a billion users. One of it’s major features is its For You page, which allows users to consume content delivered to them based on the For You algorithm. Every time a user interacts with content, the algorithm processes new information: the amount of time the user […]
Information Cascades: Music Streams and Downloads
Our discussion of information cascades centered around the principle that “when people are connected by a network, it becomes possible for them to influence each other’s behaviors and decisions” (Easley and Kleinberg, 2019). Individuals in a network usually have different types of information available to them when making decisions; the information they came up with […]
Information Cascades and Bayesian Models in Election Misinformation
In the New York Times article, “Misinformation experts have been prepping for this day”, Tiffany Hsu details how several organizations have been taking measures to prevent the spread of misinformation during the midterm elections. We can connect election misinformation to two networks concepts: 1) information cascades and 2) Bayesian models. In the article, experts from […]
Reverse Line Movement in Sports Betting and Information Cascade
Article: https://theathletic.com/2581377/2022/01/27/reverse-line-movement-in-sports-betting-how-to-tell-where-the-public-vs-sharp-money-is-going/ The sports betting business is very profitable, making billions every year. How? Well, the premise of the sports betting business is the vig, more colloquially known as “juice.” This juice is a built-in profit margin built into the sports betting line. Given two sides of a bet that is just as likely […]
Information Cascading in Social Media News
https://www.sciencedaily.com/releases/2018/03/180312095504.htm For a long while, people generally got their news from a small set of places. It would generally be from a smaller amount of big news sources where the news is carefully vetted, though it still could be very biased. With the advent of social media, a lot of that has changed. While many […]
Bayes In The Time Of COVID
This example is from very recently and is what inspired me to write this up as a post. Here’s what happened. Even though I wasn’t aware of any exposures or had any symptoms, I decided to have a COVID test since I wanted to spend New Year’s with my parents in person. I thought it […]
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